An equivalent complex permeability model for litz-wire windings

  title={An equivalent complex permeability model for litz-wire windings},
  author={Xi Nan and Charles R. Sullivan},
  journal={Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005.},
  pages={2229-2235 Vol. 3}
  • X. Nan, C. Sullivan
  • Published 2005
  • Business
  • Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005.
Previous methods for calculating power loss in litz-wire windings usually assume very fine strands such that the diameter of strands is much smaller than skin depth. In this paper, we present a method for calculating proximity-effect loss in litz-wire windings. This method uses an equivalent complex permeability model of the winding to describe the proximity effect. We first obtain a permeability model for litz-wire bundles, then use homogenization techniques to find the average permeability of… 

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